title: The elusive fourth canal found in maxillary molars.
authors.affiliation: University of Toronto.
authors.forename: J G
authors.initials: JG
authors.lastname: Coyne
authors.forename: M S
authors.initials: MS
authors.lastname: Dhillon
mesh_terms: D003786:Dental Pulp Cavity / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D006801:Humans; D008334:Mandible; D008437:Maxilla; D008963:Molar / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D011859:Radiography; D012016:Reference Values; D009626:Terminology as Topic